Analysts say tolls could generate enough revenue to finance construction of a new Interstate 5 bridge across the Columbia River at Portland.
The analysis released Tuesday estimates tolls would generate about $80 million a year.
The Oregonian reports the analysis was conducted for the Oregon Department of Transportation by the consulting firm CDM Smith.
Oregon needs enough toll revenue to repay both a $900 million federal loan and the $450 million the state intends to borrow.
Columbia River Crossing project director Kris Strickler says the analysis is good news for the bridge plan. It has been stalled for a year since the state of Washington backed out as co-sponsor of the $2.8 billion project.
Gov. John Kitzhaber is asking the Legislature to reauthorize Oregon's $450 million contribution.